This idea is courtesy of Armani, who has implemented it his custom NeoLemmix build.
The Level Select menu currently has a search bar, which allows the user to search the levels by title. The results are displayed and can be clicked to load the relevant level.
Armani's version also allows searching by Title and Style. This could be expanded even further to allow searching by Skills, Talismans and other level properties.
Now that the Search feature is fast and stable, expanding it seems like the obvious next move.
Also, @Armani - I'd be very interested to see how your Search feature works, and if you may have been able to optimise it in a different or better way than I have.